Julian Speroni will leave Crystal Palace at the end of this season.
The Argentine has spent 15 years at Selhurst Park, making 405 for the Eagles during that time.
Palace chairman Steve Parish said: "Julian has devoted the best 15 years of his playing career to our club, and will go down in the record books - but perhaps more importantly, will be remembered as a true club legend by all Palace fans and everyone at the club.
"You just don't get many people like Julian in elite football anymore - he is a model professional, ultra-committed, immensely loyal, and has set impeccable standards to his team-mates down the years.
"His contribution to this club cannot be overstated, and we will be eternally grateful for his service."